Portion of a vehicle exterior



FIG. 1 is a perspective view of a portion of a vehicle exterior showing my new design;

FIG. 2 is a side elevational view, the opposite side elevational view being a mirror image thereof;

FIG. 3 is a rear elevational view thereof; and,

FIG. 4 is a top plan view thereof. 

The ornamental design for a portion of a vehicle exterior, as shown and described. 